Inclusion Criteria: children ages 2 to 14 years with poor head control and non progressive diagnoses. Exclusion criteria: significant change of status i.e. prolonged hospitalization, surgery; inability to tolerate using Headpod. Requires use of Headpod 3x per day for minimum of 15 minutes each time over a 6 month period. Log must be kept documenting usage of the Headpod. Video will be taken to document changes.